Research Article

Identification of a Novel Biomarker for Biliary Tract Cancer Using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

Figure 1

The protein mass profile between m/z 0 and 10000 highlighting the differentially expressed peaks in serum from healthy volunteers, patients with benign biliary disease, and BTC patients. The m/z 4204 peak (indicated by arrows) intensity was higher in cancer patients compared with patients with benign disease and healthy volunteers.
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